Hydrocarbon-motor.



No. 871,707. PATENTED NOV. 19, 1907. E. KOCH.

HYDROCARBON MOTOR. nruqnron nun MAY 31. 1901.

2 SHEETS-SHEET 1.

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WITNESS E5: INVENTOR T'ml I f 1'": NORRIS PETERS co. WASHINDI'ON, n. c.

PATENTED NOV. 19, 1907. E. KOCH.

HYDROGARBON MOTOR.

APPLICATION runn MAY 31. 1907.

2 SHEETS-SHEET 2- WITNESSES INVENTOH Tn: "0km: PETERS ca, wasnmcrnu, n.c.

EUGENE KOCH, OF LYON, FRANCE.

HYDRO GARB ON-MOTOR.

Specification of Letters Patent.

Patented Nov. 19, 1907.

Application filed May 31. 1907- Serial No. 376.651.

To all whom it may concern:

Be it known that I, EUGENE KooH, a citizen of the French Republic,residing at Lyon, in France, have invented certain new and usefulImprovements in Hydrocarbon- Motors, of which the following is aspecification.

The object of the present invention is the application to a hydrocarbonmotor of means for transforming an alternating rectilinear movement intocontinuous circular movement by means of a cam having three bosses onwhich travel rollers, the latter being arranged at constant distancesapart and being fixed to the coupling members of the motor pistons. Saidcoupling members can be joined to connect the pistons and may also forman integral part thereof and be apertured for the passage of the motorshaft.

The present invention more particularly relates to the generalarrangement of the mo tor, and to the means for distribution andignition which will allow of obtaining the four stroke cycle with twelveeffective impulses to each revolution of the motor shaft in the case ofan eight cylinder motor, and six efiective impulses in the case of afour cylinder motor. Moreover, in the former case the compression in acylinder is always made at the same time that the explosion occurs inthe opposite cylinder, so that there is always an interposed cushion ofgas for reducing the shocks of the motor.

' In the construction represented in the annexed drawing the motor haseight cylinders arranged concentrically in pairs but it is obvious thatother arrangements may be adopted without departing from the spirit ofthe invention. The motor is also designed so that the cam rotates withina space at the center of the cylinders which are fixed; but by aninverse arrangement the cylinders may be movable about a fixed cam. Thecooling is effected by circulation of water or by ribs, according tocircumstances.

Referring to the annexed drawings Figure 1 is a central section of amotor constructed according to the invention. Fig. 2 is a sectional planview showing the position of the distribution and ignition cams. Fig. 3is a front view of the cam controlling the distribution valves. Fig. 4is a front .view of the cam controlling the ignition. Fig. 5 is a frontelevation of the motor. Fig. 6 is a section of the mechanism forcontrolling the distribution and Fig. 7 is a section of the mechanismfor controlling the ignition.

The motor shown comprises eight cylinders A A B B C C, D D placed atangles of 90 degrees to each other and arranged in such a manner thatthe cylinders A B C D are concentric with the cylinders A B C D and sothat the active surface is the same for all the pistons of thesecylinders. However, if by reason of the annular arrangement of the largepiston the effect of the explosion is less than the effect in the smallcylinder the said annular surface may be increased. The pistons a b c (lare solid whereas the pistons c I) c d are each hollow for reception ofa (lead-head 0. b a (Z which transmits the pressure of an internalspring a to the shaft ff, f or f on which are mounted the rollers g g gg the continuous contact of which with the double cam with three bosses7L ef fects the conversion of the reciprocating movement of the pistonsinto a continuous circular movement of the said cam, or viceversa. Inthe form of construction shown in Fig. l the double cam h is keyed totheshaft i, which is, therefore, the motor shaft.

The arrangement of spring-loaded deadheads in the large pistons is forthe purpose of always insuring perfect contact of the rollers with thecam, whatever the extent of wear thereof. I'Iowever, any othermechanical means may be employed for securing the same result.

The principal feature of the invention resides in the application tothis rotary motor of cams which allow the supply and exhaust valves andthe ignition devices to be actuated only once in every two strokes inorder to carry out the four stroke cycle, or in other words of each timejumping a boss of the main cam 72., in order to permit the compressionand explosion to take place while the valves are closed. This result isobtained by means of a cam with a double groove or path 1' (Fig. 3)fixed to the motor shaft and which during its rotation displaces agudgeon k which passes alternately from the inner groove to the outergroove, and vice-versa. These movements are transmitted by a rod Z(Figs. 1 and 6) to a lever on fulcrumed at m and actuating, at an equaldistance from the center of oscillation, two rods a a controllingrespectively the admission valves n n to the small and large cylinders.The same device is reproduced for each of the four pairs of cylinders.The exhaust is produced in the same manner by a similar cam j fixed tothe motor shaft i at an angle differing from that of the cam As will beunderstood, when admission is taking place for example, in a smallcylinder, the corresponding large cylinder will be closed, and viceversa, this result being due to the movement of the valves controlled bythe rods n n. It follows that on each boss of the main cam h coming intoaction suction is produced in a large or small cylinder alternately, andthat one of the pistons is always acting effectively.

The control of the ignition is effected by a cam 0 (Fig. 4) similar inconstruction to the cams and j The movements of the gudgeon p of thiscam are transmitted to a rod g whichactuates the lever r pivoted at W,which acts on rods 8 s controlling circuitbreakers or an igniting deviceof any kind. The position of the cams controlling the distribution andthe ignition may of course vary according to the type of motorconstructed in accordance with the present invention.

It will be understood that the reciprocate ing movements of the pistonstransmitted to the rollers g g g g which take part in their movement,have the effect of rotating the cam h and shaft "L. Forward and rearwardrunning are obtained by simply rotating the distribution controllingcams through 60 by means of a suitable lever it.

What I claim as my invention and desire to secure by Letters Patent ofthe United States is 1. In a motor the combination with radiallydisposed cylinders pistons working therein rollers carried in pairs bythe rods of said pistons, a motor shaft and a cam on said shaft having aplurality of bosses thereon continuously engaged by said rollers, of

inlet and exhaust valves to said cylinders and double pathed camsadapted to act on said valves whereby admission and exhaust to and fromeach cylinder takes place only after a double stroke of said pistonssubstantially as described.

2. In a motor the combination with radially disposed cylinders pistonsworking therein, rollers carried in pairs by the rods of said pistons,a'motor shaft and a cam on said shaft having a plurality of bossesthereon continuously engaged by said rollers, of inlet and exhaustvalves to said, cylinders means for igniting the charge in saidcylinders, and double pathed cams adapted to control said igniting meansand to act on said valves whereby admission and exhaust to and from eachcylinder take place only after a double stroke of said pistonssubstantially as described.

3. In a motor the combination with radially disposed cylinders arrangedconcentricallyin pairs, pistons working in said cylinders, rollerscarried in pairs by the rods of said pistons, a motor shaft located atthe point of intersection of the axes of said cylinders, and a cam onsaid shaft having three bosses thereon, continuously engaged by saidrollers of inlet and exhaust valves for said cylinders double pathedcams adapted to act on said valves whereby admission and exhaust to andfrom said cylinders take place only after a double stroke of thepistons, means for igniting the charge in said cylinders and a doublepathed cam controlling said igniting means substantially as described.

In witness whereof I have signed this specification in the presence oftwo witnesses.

EUGENE KOCII Witnesses: Y

JEAN GERMAIN, GUILLAUME PIOOHE.

